Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 700mm give 4 controllable stop positions across a 750mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 150 mm
- Stroke 2700 mm
- Total travel750 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S
The SCT100X50X700S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions: fully retracted (0 mm), 50 mm, 700 mm, and the total travel of 750 mm. Each piston section generates a push force of 3927 N at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy-duty sorting or multi-stage clamping.
This model features a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors. The second stroke of 700 mm is a non-standard, made-to-order length, requiring careful attention to guiding. The cylinder uses a 25 mm diameter rod, PT1/2 ports, and a tie-rod construction with a 29 mm adjustable air cushion and a body length A of 308 mm.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 50 / 700 mm |
| Total travel | 750 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). This configuration exceeds the 500 mm standard section stroke, so it is a non-standard / made-to-order build. Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 50 mm |
| P2 (section 2) | 700 mm |
| P3 (both extended) | 750 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×700 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S Is Used
Two-Stage Pallet Stop
Uses the 50 mm stroke for a soft initial stop and the full 750 mm extension to securely hold a heavy pallet, with sensors confirming each discrete position.
Long-Reach Diverter Gate
Positions a chute gate at a partially open 700 mm position for one lane and a fully extended 750 mm position for another, eliminating the need for two separate long-stroke cylinders.
Multi-Depth Press Ejection
Ejects parts from a press in two stages: a precise 50 mm push to clear the die, followed by a full 750 mm stroke to move the part onto an outfeed conveyor.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S the Right Cylinder?
Select this SCT when a single actuator must provide two distinct, long extension points without the complexity of two separate cylinders and external stops. The four positions (0, 50, 700, 750 mm) are ideal for applications like a two-stage ejector or a diverter gate with a long reach. If a higher force per section is needed, the only larger standard bore is the 100 itself; for a lighter, more compact solution, consider stepping down to an SCT80, which provides 2513 N of push per section at 0.5 MPa.
For replacement, match the 100 mm bore, both the 50 mm and 700 mm strokes, the PT port thread, and the integrated magnet (-S). Because the 700 mm stroke section is significantly long, ensure the load is externally guided to prevent rod bending and side-load damage.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 700 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X700S FAQ
This 4-position cylinder provides discrete mechanical stops at 0 mm (fully retracted), 50 mm, 700 mm, and 750 mm (total travel). The positions are achieved by pressurizing the first, second, or both piston sections.
The SCT100X50X700S combines two strokes on a single common rod, guaranteeing a fixed positional relationship between the 50 mm and 700 mm stops without the need for complex bracketry, alignment, or sequencing controls required by two independent cylinders. It also includes a built-in magnet for sensor mounting.
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